A 14-year-old boy is to be charged with murder after four people were killed and nine injured in a shooting at a Georgia high school.

The Georgia Bureau of Investigation said those killed were two pupils and two teachers at Apalachee High School.

The boy, named as Colt Gray, a pupil, was arrested by two officers on the school campus.

According to BBC News, he will be charged as an adult.

Authorities have not said what type of weapon was used, or how many bullets were fired.